FM approved air valves  common applications:

 

• Wet systems

• Pilot Line for remote operation of hydraulic valves

• Fire extinguishing pumps

• Air drainage on main supply lines

 

Problems that arise from the presence of air in wet systems:

• Dangerous corrosion problem, especially in thin-walled plumbing and non-quality raw  materials that produce corrosion in the pipe seam area.

• Microbiological tumors that can block spray nozzles and obstruct the extinguishing system

• Use of air valve in high installations that are difficult for continuous air drainage